Key Dance Instructions
Totally copied this from a post after searching for it. I thought it would be easier to find if it was named. If there are other key dance patterns they could be named here as well. Just add the model and repost.
Key Dance Instructions: 2005 GC 5.7
Key in the ignition, turn the key to the on (not start) then off, then on (not start) then off, then ON and leave it there... your evic will tell you any dtc's in your PCM